Can this be used on flexible surfaces?

Depends on how flexible. It has to be able to adhere to the surface. It cures the same as rubber in a tire. There is some give.

Hello there. That's an excellent question. Flex Paste can be applied to dry or wet surfaces and even underwater. It does not dissolve, creating a watertight seal. Thank you very much for reaching out to us with your question. Please write to us anytime. We're always happy to help. Flex On!

Flex seal pasta can it be used on curved surfaces?

Yes it can be used on any curved and even upside down surface but if ordering on-line, if you open the can and the edges are turning hard return it ASAP because chances is it's hard on bottom as-well and you don't get your money worth

Can I use in a in ground swimming pool to repair a crack

Yes, it can be applied underwater. It won’t dissolve or wash away. It even dries underwater! Flex Paste is easy to use. With a putty knife, trowel, spatula, roller, or stiff brush remove a smooth even layer of material from the top of the tub. Scooping deeply into the tub may cause air pockets which can dry FLEX PASTE. Apply a generous amount using a smooth sweeping motion.

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Flex Paste 1-Pound Jar

Product ID: 728213860

Details

Brand
Flex Paste
Item dimensions L x W x H
10.8 x 10.8 x
Material
Rubber
Style
1 lb Black
Water Resistance Level
Waterproof

🌊Submersible & seals underwater

🖌️Fully paintable after curing

🛡️Waterproof rubberized barrier

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£56.15

Duties & taxes included

In stock

Sold byAmazon UKDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Seal it, fix it, flaunt it — the ultimate paste for flawless finishes!

PAINT IT YOUR WAY - Once cured, customize with any paint color to blend perfectly with your project.
FILL BIG GAPS INSTANTLY - Super thick paste fills large cracks and holes with ease—no more patchy fixes.
SEAL PROTECT LIKE A PRO - Creates a flexible, durable barrier that locks out air, water, and moisture for long-lasting protection.
BUILT FOR EVERY ENVIRONMENT - UV resistant, rust-proof, and submersible—ideal for indoor, outdoor, marine, and automotive use.
VERSATILE SURFACE COMPATIBILITY - Works seamlessly on wood, metal, concrete, glass, and more—your all-in-one repair solution.

Flex Paste 1-Pound Jar is a premium, rubberized sealant designed to fill large cracks and holes while providing a flexible, waterproof barrier. Compatible with a wide range of materials, it is fully paintable, UV resistant, and submersible, making it perfect for diverse indoor and outdoor repair projects. Made in the USA and ASTM C-920 certified, it ensures professional-grade durability and protection.

Specifications

ASIN	B084TDS8S5
Amazon Bestseller	#227,009 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #67 in Lard & Rendered Animal Fat #137 in Adhesive Caulk
Brand Name	Flex Paste
Color	Black
Compatible Material	DIY
Customer Reviews	3.7 3.7 out of 5 stars (867)
Item Dimensions	10.8 x 10.8 x 6.4 cm
Item Form	ジャー,ペースト
Manufacturer	Flex Seal
Material Type	Rubber
Model	FLEX SEAL - PFSBLKR16 - BLACK
Number of Items	1
Part Number	PFSBLKR16
Style Name	1 lb Black
Supported Standards	ASTM C-920
Surface Recommendation	Windows, Doors
UPC	850010226804
Unit Count	16.0 Ounce
Water Resistance Level	Waterproof

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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